<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>数据统计</el-breadcrumb-item>
			<el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片区域 -->
		<el-card>
			<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
			<div id="main" style="width: 750px;height:400px;"></div>
		</el-card>
	</div>
</template>

<script>
	// 1.导入安装
	import * as echarts from 'echarts'
	import _ from 'lodash'
	export default {
		data() {
			return {
				// 需要合并的数据
				options: {
					title: {
						text: '用户来源',
					},
					tooltip: {
						trigger: 'axis',
						axisPointer: {
							type: 'cross',
							label: {
								backgroundColor: '#E9EEF3'
							},
						},
					},
					grid: {
						left: '3%',
						right: '4%',
						bottom: '3%',
						containLabel: true,
					},
					xAxis: [{
						boundaryGap: false,
					}, ],
					yAxis: [{
						type: 'value',
					}, ],
				}
			}
		},
		created() {

		},
		// 此时页面上的元素已经渲染完毕
		async mounted() {
			// 3.基于准备好的dom，初始化echarts实例
			var myChart = echarts.init(document.getElementById('main'));

			const {
				data: res
			} = await
			this.$http.get('reports/type/1')
			if (res.meta.status !== 200) {
				return this.$message.error('获取折线图数据失败！')
			}

			// 4.准备数据和配置项
			const result = _.merge(res.data, this.options)
			// 5.展示数据
			myChart.setOption(result);
		},
		methods: {

		},
	}
</script>

<style>
</style>
